The Flanders Pre Pleat 40 LPD Series 80055.022525 Standard Capacity Pleated Filter is designed from recyclable materials to create an efficient and moisture-resistant filter to be used in a variety of applications including heating, air conditioning, and ventilation. These 25" x 25'' x 2" pleated filters are constructed with a MERV 8 rated synthetic media. The Pre Pleat 40 LPD filter is suitable for variable air systems from 0 to 500 FPM. It is designed with a low pressure drop and a high dust holding capacity to lengthen service life. The filters are UL 900 listed for flame resistance. Due to their pleated design, these filters will not collapse, warp, or bend in normal service. Pre Pleat 40 filters can be installed in PF-1 Holding Frames, K-Trac Framing Modules, Surepleat Side Access Housings, and similar hardware. They may be used as pre-filters for Precision Pak, Super Flow V, PrecisionCell, and Rigid Air filters.

These filters suit me well. I'm very happy with them as the four inch filters I found locally are too big for the opening in my unit.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

When I bought my house (resale) the contractor did not make me aware that the
filter to fit was not a regular size filter (20 x 20 x 1). I did not know it measured 191/2".
This is a special size that was not available in Home Depot or Lowe's. I looked at the
filter that was in the vent and called the number to order it.

Yes! I love it and am happy I was able to find it, otherwise I would have been in big
trouble. My contractor should have made provisions for a filter fit. I was not aware
that shipping was an extra charge. I would like to know how much must be spent to
avoid shipping charges. I waited 4 weeks for delivery, the charges should have been waived.

When I bought my house (resale) the contractor did not make me aware that the
filter to fit was not a regular size filter (20 x 20 x 1). I did not know it measured 191/2".
This is a special size that was not available in Home Depot or Lowe's. I looked at the
filter that was in the vent and called the number to order it.

Yes! I love it and am happy I was able to find it, otherwise I would have been in big
trouble. My contractor should have made provisions for a filter fit. I was... more

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

I have used these pleated filters for over five years and I have had no problems. The filters seem to do the job.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

This size is very hard to find. I have been ordering from Flanders for the last 8 years and am very pleased with their customer service and pricing. I have never had any problems with their shipments. Very professional and accurate.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

Great savings over big box stores, and so easy to order and install myself.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

Bought this home a year ago and had enough filters till this fall, Size on the filter and what was printed in the furnace from the installer, was 4x20x25 Went to home depot and bought several filters and actual size is not 4" but fine print shows 3 3/4"x20x25, so 4" would not fit in the opening.

I was able to find the old filter and look up Flanders filters and found the size I needed.Thank goodnes you are still in business. This is a clear case of heatng shop intentionally putting this size in to drive business to him as size is not easily available.

Bought this home a year ago and had enough filters till this fall, Size on the filter and what was printed in the furnace from the installer, was 4x20x25 Went to home depot and bought several filters and actual size is not 4" but fine print shows 3 3/4"x20x25, so 4" would not fit in the opening.

I was able to find the old filter and look up Flanders filters and found the size I needed.Thank goodnes you are still in business. This is a clear case of heatng shop... more

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

Being an A/C design Mechanical Engineer and living in a twelve (12) month air condition season in the Florida Keys, I highly recommend this great product. I also like the fact that I can purchase a large quantity of these filters at once. I have always had trouble finding this particular size and they usually only had a few in stock, when I could find them.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.

Been using this filter for 10 years. Used to have to dust every month. Now it is more like every six months since I started using these. Excellent dust trapping.

Tip: What is a Related Review?* Related reviews were originally written for products that are very similar to this one. While the reviewed product may differ in color, size, fuel type, or another aspect, we believe it is applicable to this model.